We have analyzed a great share of .NET Framework Class Library, as well as NUnit Framework, and annotated it through external XML files, using a set of custom attributes from the JetBrains.Annotations namespace.

A new, extended reincarnation of what was previously known as Reformat Code. You can now save a myriad of "go-to-next-highlight-then-apply-a-quick-fix" iterations by simply running Code Cleanup!

New Refactorings

In line with the major message of the current release, all refactorings support C# 3.0. New members of the refactoring family are available, including a pack of C# 3.0-specific refactorings. Plus, we have a surprise for VB.NET aficionados: all refactorings that were previously limited to C# 2.0 are now available for Visual Basic 8.

ASP.NET Speedup

ReSharper 4.0 significantly speeds up analysis of ASP.NET pages, to enable more web developers benefit from the great toolset that ReSharper provides.